{"id":24740039,"url":"https://github.com/garrettj403/qmix","last_synced_at":"2025-07-07T14:33:01.241Z","repository":{"id":57459013,"uuid":"144023017","full_name":"garrettj403/QMix","owner":"garrettj403","description":"Simulate the behavior of SIS junctions","archived":false,"fork":false,"pushed_at":"2025-04-01T03:44:19.000Z","size":20451,"stargazers_count":9,"open_issues_count":2,"forks_count":3,"subscribers_count":5,"default_branch":"master","last_synced_at":"2025-06-27T01:38:13.912Z","etag":null,"topics":["physics","python","radio-astronomy","simulation","sis-mixer"],"latest_commit_sha":null,"homepage":"https://garrettj403.github.io/QMix/","language":"Python","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"gpl-3.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/garrettj403.png","metadata":{"files":{"readme":"README.md","changelog":"CHANGES.md","contributing":"CONTRIBUTING.md","funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2018-08-08T14:10:15.000Z","updated_at":"2025-04-01T03:44:22.000Z","dependencies_parsed_at":"2022-09-10T11:51:43.118Z","dependency_job_id":"aa510820-a9f8-4339-b697-9867765363f5","html_url":"https://github.com/garrettj403/QMix","commit_stats":{"total_commits":290,"total_committers":2,"mean_commits":145.0,"dds":"0.12413793103448278","last_synced_commit":"297ae8c7ff948700d39c893045a125ee91985576"},"previous_names":[],"tags_count":7,"template":false,"template_full_name":null,"purl":"pkg:github/garrettj403/QMix","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/garrettj403%2FQMix","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/garrettj403%2FQMix/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/garrettj403%2FQMix/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/garrettj403%2FQMix/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/garrettj403","download_url":"https://codeload.github.com/garrettj403/QMix/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/garrettj403%2FQMix/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":264092243,"owners_count":23556261,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["physics","python","radio-astronomy","simulation","sis-mixer"],"created_at":"2025-01-27T23:14:23.956Z","updated_at":"2025-07-07T14:33:01.219Z","avatar_url":"https://github.com/garrettj403.png","language":"Python","funding_links":[],"categories":[],"sub_categories":[],"readme":"QMix\n====\n\n**Quantum Mixing software**\n\n[![PyPI version](https://badge.fury.io/py/qmix.svg)](https://badge.fury.io/py/qmix)\n[![ci](https://github.com/garrettj403/QMix/actions/workflows/ci.yml/badge.svg)](https://github.com/garrettj403/QMix/actions/workflows/ci.yml)\n[![flake8](https://github.com/garrettj403/QMix/actions/workflows/linter.yml/badge.svg)](https://github.com/garrettj403/QMix/actions/workflows/linter.yml)\n[![License: GPL v3](https://img.shields.io/badge/License-GPL%20v3-blue.svg)](https://github.com/garrettj403/QMix/blob/master/LICENSE)\n\nQMix is used to simulate the quasiparticle tunneling currents in Superconductor/Insulator/Superconductor (SIS) junctions. In radio astronomy, these junctions are used for heterodyne mixing at millimeter and submillimeter wavelengths. QMix can be used to simulate the behavior of SIS mixers, optimize their performance and analyze experimental data.\n\nIn order to calculate the quasiparticle tunneling currents, QMix uses *multi-tone spectral domain analysis* (see [references](https://garrettj403.github.io/QMix/references.html#references-related-to-multi-tone-spectral-domain-analysis)). Among other applications, this makes QMix ideal for simulating power saturation, higher-order harmonics, sub-harmonic pumping, harmonic mixing and frequency multiplication.\n\n**Website:** https://garrettj403.github.io/QMix/\n\nGetting Started\n---------------\n\nThe easiest way to install QMix is using ``pip``:\n\n```bash\n# for latest release (from PyPI)\npython -m pip install QMix\n\n# for latest commit (from GitHub)\npython -m pip install git+https://github.com/garrettj403/QMix.git\n```\n\nTake a look at the [QMix website](https://garrettj403.github.io/QMix/) for more information on how to use the QMix package and examples showing how to simulate SIS junctions. If you run into any problems, please create a new issue through the [issue tracker](https://github.com/garrettj403/QMix/issues) with the ``help wanted`` or ``question`` tag. In your message, make sure to include your operating system, Python version, and package versions for QMix, Numpy, SciPy and Matplotlib.\n\nContributing to QMix\n--------------------\n\n[![GitHub issues](https://img.shields.io/github/issues-raw/garrettj403/QMix.svg)](https://github.com/garrettj403/QMix/issues)\n[![GitHub commits since latest release](https://img.shields.io/github/commits-since/garrettj403/QMix/latest.svg)](https://github.com/garrettj403/QMix/commits/master)\n\nIf you would like to contribute to the QMix project, please take a look at the [contribution instructions](https://github.com/garrettj403/QMix/blob/master/CONTRIBUTING.md). This document includes information on reporting bugs, requesting new features, creating pull requests and contributing new code.\n\nTo get a local copy of QMix running:\n\n```bash\n# Download QMix\ngit clone https://github.com/garrettj403/QMix.git QMix\ncd QMix/\n\n# Create a virtual environment using Anaconda\nconda env create -f environment.yml\nconda activate qmix\n\n# Install QMix\npython -m pip install -e .\n\n# Test installation\npytest --verbose --color=yes tests/\n```\n\nExamples\n--------\n\nQMix can be used to simulate a wide variety of SIS junction behavior. A simple example is shown below for simulating an SIS mixer at 230 GHz. You can find more examples in the ``QMix/notebooks/`` directory or on the [QMix website](https://garrettj403.github.io/QMix/single-tone-simulation.html). \n\n![](https://raw.githubusercontent.com/garrettj403/QMix/master/notebooks/results/multi-tone-results.png)\n\nCiting QMix\n-----------\n\nIf you use QMix, please cite the following papers:\n\n[![DOI1](https://img.shields.io/badge/DOI%201%3A-10.21105%2Fjoss.01231-blue)](https://doi.org/10.21105/joss.01231)\n\n    @article{Qmix1,\n      author       = {J. D. Garrett and G. Yassin},\n      title        = {{QMix: A Python package for simulating the quasiparticle tunneling currents in SIS junctions}},\n      publisher    = {Journal of Open Source Software},\n      month        = mar,\n      year         = 2019,\n      volume       = 4,\n      number       = 35,\n      pages        = 1231,\n      doi          = {10.21105/joss.01231},\n      url          = {https://doi.org/10.21105/joss.01231},\n    }\n\n[![DOI2](https://img.shields.io/badge/DOI%202%3A-10.1109%2FTTHZ.2019.2938993-blue)](https://doi.org/10.1109/TTHZ.2019.2938993)\n\n    @article{Qmix2,\n      author       = {J. D. Garrett and B.-K. Tan and F. Boussaha and C. Chaumont and G. Yassin},\n      title        = {{Simulating the Behavior of a 230-GHz SIS Mixer Using Multitone Spectral Domain Analysis}},\n      publisher    = {IEEE Transactions on Terahertz Science and Technology},\n      month        = nov,\n      year         = 2019,\n      volume       = 9,\n      number       = 6,\n      pages        = {540--548},\n      doi          = {10.1109/TTHZ.2019.2938993},\n      url          = {https://ieeexplore.ieee.org/document/8822760/},\n    }\n\nYou can also cite a specific version of QMix by citing the appropriate Zenodo archive:\n\n[![DOI3](https://img.shields.io/badge/DOI%203%3A-10.5281%2Fzenodo.2538162-blue)](https://doi.org/10.5281/zenodo.2538162)\n\n    @article{Qmix3,\n      author       = {J. D. Garrett},\n      title        = {{QMix  (v1.0.6)}},\n      month        = jul,\n      year         = 2020,\n      publisher    = {Zenodo},\n      doi          = {10.5281/zenodo.3936263},\n      url          = {http://doi.org/10.5281/zenodo.3936263}\n    }\n\nLicense\n-------\n\nQMix is released under a [GNU General Public License, Version 3](https://github.com/garrettj403/QMix/blob/master/LICENSE).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgarrettj403%2Fqmix","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fgarrettj403%2Fqmix","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgarrettj403%2Fqmix/lists"}